In what year was the album “7” released by Harppia?

In what year was the album “7” released by Harppia?: The album “7” was released in 1987 by Harppia, featuring 8 tracks.
What is the most successful song from the album “7” by Harppia?: “Na Calada da Noite” is the biggest hit from the album “7” by Harppia.

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